R6RS vs. R5RS scheme

Question

I'm relatively new to scheme and am having a hard time finding a concrete document online overviewing the major changes that happened with R6RS. Anyone care to elaborate?

Answer 1

http://community.schemewiki.org/?R6RS has compiled a list of high level changes with some commentary, including:

• case sensitive syntax
• square brackets are now equivalent to parentheses (e.g., (let ([foo 3]) ...) - this was supported in some scheme implementations but is now part of the standard
• retaining the ability to return multiple values
• more escape characters in strings, e.g., "\n"
• hashtables as a library
• multiline and expression comments

http://www.r6rs.org/versions/CHANGES

http://www.r6rs.org/formal-comments/

http://lambda-the-ultimate.org/node/1342

If you're relatively new to scheme and have the fortitude you will get more mileage reading the spec instead of skimming a changelog though...